JPH03106484A - Washing apparatus using combustible solvent - Google Patents
Washing apparatus using combustible solventInfo
- Publication number
- JPH03106484A JPH03106484A JP1242710A JP24271089A JPH03106484A JP H03106484 A JPH03106484 A JP H03106484A JP 1242710 A JP1242710 A JP 1242710A JP 24271089 A JP24271089 A JP 24271089A JP H03106484 A JPH03106484 A JP H03106484A
- Authority
- JP
- Japan
- Prior art keywords
- flammable solvent
- flammable
- cleaning
- solvent
- cleaned
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 239000002904 solvent Substances 0.000 title claims abstract description 96
- 238000005406 washing Methods 0.000 title abstract description 5
- 239000007788 liquid Substances 0.000 claims abstract description 69
- 239000003063 flame retardant Substances 0.000 claims abstract description 16
- 238000004140 cleaning Methods 0.000 claims description 74
- RNFJDJUURJAICM-UHFFFAOYSA-N 2,2,4,4,6,6-hexaphenoxy-1,3,5-triaza-2$l^{5},4$l^{5},6$l^{5}-triphosphacyclohexa-1,3,5-triene Chemical compound N=1P(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP=1(OC=1C=CC=CC=1)OC1=CC=CC=C1 RNFJDJUURJAICM-UHFFFAOYSA-N 0.000 claims description 14
- 235000007586 terpenes Nutrition 0.000 claims description 12
- 238000007789 sealing Methods 0.000 claims description 11
- 150000003505 terpenes Chemical class 0.000 claims description 11
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 9
- 238000009835 boiling Methods 0.000 claims description 6
- 239000003350 kerosene Substances 0.000 claims description 5
- 238000005507 spraying Methods 0.000 claims description 5
- 239000004094 surface-active agent Substances 0.000 claims description 5
- 230000001804 emulsifying effect Effects 0.000 claims description 4
- 239000000203 mixture Substances 0.000 claims description 3
- 125000003158 alcohol group Chemical group 0.000 claims 1
- 125000002298 terpene group Chemical group 0.000 claims 1
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 7
- 239000003921 oil Substances 0.000 description 7
- 238000000034 method Methods 0.000 description 4
- 238000009833 condensation Methods 0.000 description 2
- 230000005494 condensation Effects 0.000 description 2
- 230000006378 damage Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000000110 cooling liquid Substances 0.000 description 1
- 239000010730 cutting oil Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- NBVXSUQYWXRMNV-UHFFFAOYSA-N fluoromethane Chemical compound FC NBVXSUQYWXRMNV-UHFFFAOYSA-N 0.000 description 1
- 238000011010 flushing procedure Methods 0.000 description 1
- 238000007654 immersion Methods 0.000 description 1
- 238000005192 partition Methods 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 239000003021 water soluble solvent Substances 0.000 description 1
Landscapes
- Manufacturing Of Printed Wiring (AREA)
- Cleaning By Liquid Or Steam (AREA)
- Cleaning And De-Greasing Of Metallic Materials By Chemical Methods (AREA)
Abstract
Description
【発明の詳細な説明】
産業上の利用分野
本発明は可燃性溶剤を用いた洗浄装置に係るものであっ
て、機械部品、プリント基板等の洗浄を可燃性溶剤を用
いて安全に行おうとするものである．
従来の技術
従来機械部品、プリント基板等の洗浄を行うには、不燃
性で発火の危険がないこと、洗浄力に優れていること等
から一般的にフロン系溶剤が用いられていたが、地球環
境の破壊を伴うことから使用が規制されるものとなった
．このフロン系溶剤に代わる溶剤として、テルベン溶剤
、テルペン溶剤とテルペン乳化界面活性剤から成る組戒
物、アルコール、ケロシン等の溶剤が考慮されるが、こ
れらはいずれも可燃性溶剤であって、発火に対する安全
性が確保できず、使用不能なものとなっている．
発明が解決しようとする課題
本発明は上述のごとき課題を解決しようとするものであ
って、洗浄力に優れ、地球環境の破壊を伴うことが無い
可燃性溶剤を洗浄液に用いながら、発火の危険性を防止
し、安全な洗浄を行おうとするものである．
課題を解決するための手段
本発明は上述のごとき課題を解決するため、不燃性また
は難燃性の収納液体を収納した収納槽を設け、この収納
槽の収納液体に下端の開口部を挿入して密閉した密閉被
覆体を形或し、この密閉被覆体の密閉室に、可燃性溶剤
と被洗浄物を接触させる洗浄部を形成して成るものであ
る．また収納液体は、水であっても良い．
また収納液体は、沸点の高い難燃性油であっても良い．
また可燃性溶剤は、テルペン溶剤であっても良い
また可燃性溶剤は、テルベン溶剤とテルペン乳化界面活
性剤から成る組成物であっても良い．また可燃性溶剤は
、アルコールであっても良い．また可燃性溶剤は、ケロ
シンであっても良い．また密閉被覆体は、収納液体に不
動的に開口部を挿入したものであっても良い．
また密閉被覆体は、収納液体に対し進退可能に位置し、
収納液体に接触および離脱可能に開口部を形成したもの
であっても良い．
また洗浄部に於ける可燃性溶剤と被洗浄物の接触は、可
燃性溶剤を被洗浄物にシャワー状に噴射して行うもので
あっても良い．
また洗浄部に於ける可燃性溶剤と被洗浄物の接触は、密
閉室内に収納した充填槽内の可燃性溶剤の液面に、被洗
浄物の洗洋目的部を接触して行うものであっても良い．
また密閉室には、飛散溶剤の回収手段を接続したもので
あっても良い．
また密閉室への被洗浄物の移送は、チェーンコンベアー
を密閉被覆体外から収納液体を介して、密閉被覆体内の
洗浄部に導入し、この導入したチェーンコンベアーを、
被洗浄物の導出方向の収納液体外に突出し、循環させて
行うものであっても良い．
作 用
本発明は上述のごとく構或したものであるから、可燃性
溶剤と被洗浄物を接触させる洗浄部に於て、被洗浄物を
可燃性溶剤で洗浄すると、この洗浄によって生じる溶剤
蒸気、飛散した飛沫等は、不燃性または難燃性の収納液
体に下端の開口部を挿入して密閉した密閉被覆体に位置
し、外部に漏れることがないから、この密閉被覆体内に
発火の原因となるものを位置させなければ、発火の危険
性は無くなるものと・なる。また多少の発火原因を生じ
ても、密閉被覆体は不燃性または難燃性の収納液体に下
端の開口部を密閉されているから、発火の危険性を減少
することが可能となる．
また収納液体を、水とすれば経済的でしかも不燃性を保
つことができるから、発火に対する高度の安全性を得る
ことができる．
また収納液体を、沸点の高い難燃性油とすれば、アルコ
ール等の水に溶解する溶剤を用いる場合に、溶剤の収納
液体への溶解を防止し、収納液体の可燃化を防止できる
ものとなる．
また可燃性溶剤には、テルペン溶剤であっても良いし、
テルペン溶剤とテルペン乳化界面活性剤から戒る組成物
であっても良いし、アルコールであっても良いし、ケロ
シンであっても良く、可燃性の任意の溶剤を用いること
ができる．また密閉被覆体を、収納液体に不動的に開口
部を押入するものとすれば、コンベアーによる収納液体
を介した洗浄部への被洗浄物の供給が、簡易な機横によ
り可能となるとともに連続的な被洗浄物の洗浄が可能と
なる．
また密閉被覆体を、収納液体に対し進退可能に位置し、
収納液体に接触および離脱可能に開口部を形成すれば、
被洗浄物の移送路を水平に形成することができ、比較的
大形の被洗浄物でも容易に洗浄することが可能になり、
また被洗浄物を加工する他の加工装置との接続において
、加工装置から連続的に洗浄装置に被洗浄物を移送する
ことが可能となる．
また洗浄部に於ける可燃性溶剤と被洗浄物の接触を、可
燃性溶剤を被洗浄物にシャワー状に噴射して行うものと
ともにすれば、被洗浄物全体の強力な洗浄が可能となる
．
また洗浄部に於ける可燃性溶剤と被洗浄物の接触を、密
閉室内に収納した充填槽内の可燃性溶剤の液面に、被洗
浄物の洗浄目的部を接触して行うものとすれば、プリン
ト基板等の平板状物の一面のみの洗浄が可能となり、洗
浄効率の向上と、洗浄液に接触しては好ましくない部分
への洗浄液の接触を防ぐことができる．
また密閉室に、飛散溶剤の回収手段を接続すれば、密閉
室内に於ける可燃性溶剤の蒸気、飛沫等の濃度を低下す
ることが可能となり、発火に対する危険性を更に少なく
することが可能となる．またａ７閏室への被洗浄物の移
送を、チェーンコンベアーを密閉被覆体外から収納液体
を介して、密閉被覆体内の洗浄部に導入し、この導入し
たチェーンコンベアーを、被洗浄物の導出方向の収納液
体外に突出し、循環させて行うものとすれば、簡騒な機
構により被洗浄物の連続的な洗浄が可能となる．
実施例
以下本発明の一実施例を図面に於いて説明すれば、（１
）は収納槽で、不燃性の水または沸点の高い難燃性油等
の難燃性の収納液体（２〉を収納するが、この収納液体
（２）を、水とすれば経済的でしかも不燃性を保つこと
ができるから、洗浄作業に於ける高度の安全性を得るこ
とができる．また収納液体（２〉を、沸点の高い熱媒体
油、切削油、スピンドル油等の難燃性油とすれば、アル
コール等の水に溶解する溶剤を用いる場合に、溶剤の収
納液体（２）への溶解を防止し、収納液体（２）の可燃
化を防止できるものとなる．
また、収納槽（１）の収納液体（２）には、下端の開口
部（３）を挿入して密閉した密閉被ｆｆ体（４）を形戒
し、この密閉被覆体（４〉内に設けた密閉室（５）に、
可燃性溶剤（６）と被洗浄物（７）を接触させる洗浄部
（８〉を形威している．そして可燃性溶剤（６）は、洗
浄目的に合致したものであれば特に限定されるものでは
ないが、例えばプリント基板のフラッグス残渣を洗浄す
るには、テルペン溶剤とか、テルペン溶剤とテルベン乳
化界面活性剤から成る組戒物が好ましい．また可燃性溶
剤（６〉は、その他の洗浄目的に応じて、アルコール、
ケロシン等の可燃性の任意の溶剤を用いることができる
．また上記の密閉被覆体（４）は、収納液体（２）に不
動的に開口部（３）を挿入するものであって、第１図に
示すごとく、チェーンコンベアー（１０）をスプロケッ
トホイール〈１１〉により、密閉被覆体（４〉の外部か
ら収納液体（２〉を介して、密閉被覆体（４）内の洗浄
部（８）に導入し、この導入したチェーンコンベア−（
１０）を、被洗浄物（７）の導出方向の収納液体（２）
の外に突出し、この突出部に、被洗浄物（７）に付着し
た可燃性溶剤（６）を除去するための水洗シャワー（１
２）を設置している．また更にほこの水洗シャワー（１
２〉の前に、気泡噴出口、超音波振動子等の気泡発生部
（１３）を設けている。[Detailed Description of the Invention] Industrial Application Field The present invention relates to a cleaning device using a flammable solvent, and is intended to safely clean mechanical parts, printed circuit boards, etc. using a flammable solvent. It is something. Conventional technology Conventionally, fluorocarbon-based solvents were generally used to clean mechanical parts, printed circuit boards, etc. because they are nonflammable, pose no risk of ignition, and have excellent cleaning power. Its use has become regulated because it is associated with environmental destruction. As solvents to replace CFC-based solvents, solvents such as terbene solvents, combinations of terpene solvents and terpene emulsifying surfactants, alcohol, and kerosene are considered, but all of these are flammable solvents and can cause ignition. The safety of this product cannot be ensured, making it unusable. Problems to be Solved by the Invention The present invention attempts to solve the above-mentioned problems, and uses a flammable solvent in the cleaning liquid that has excellent cleaning power and does not cause destruction of the global environment, while eliminating the risk of ignition. The aim is to prevent this from occurring and to perform safe cleaning. Means for Solving the Problems In order to solve the above-mentioned problems, the present invention provides a storage tank containing a non-flammable or flame-retardant liquid, and inserts an opening at the lower end into the liquid stored in the storage tank. A cleaning section is formed in the sealed chamber of this hermetic covering to bring the flammable solvent into contact with the object to be cleaned. The stored liquid may also be water. The stored liquid may also be a flame-retardant oil with a high boiling point. Further, the flammable solvent may be a terpene solvent, or the flammable solvent may be a composition comprising a terbene solvent and a terpene emulsifying surfactant. The flammable solvent may also be alcohol. The flammable solvent may also be kerosene. The hermetic covering may also have an opening permanently inserted into the contained liquid. In addition, the sealing cover is positioned so as to be movable relative to the stored liquid,
It may also have an opening that allows it to come into contact with and remove the stored liquid. Further, the contact between the flammable solvent and the object to be cleaned in the cleaning section may be carried out by spraying the flammable solvent onto the object to be cleaned in the form of a shower. In addition, the contact between the flammable solvent and the object to be cleaned in the cleaning section is carried out by bringing the part of the object to be cleaned into contact with the liquid level of the flammable solvent in a filling tank housed in a sealed room. It's okay. Additionally, the sealed chamber may be connected to a means for collecting scattered solvent. In addition, to transfer the items to be cleaned to the sealed room, a chain conveyor is introduced from outside the sealed sheath through the stored liquid into the cleaning section inside the sealed sheath, and this introduced chain conveyor is
The liquid may be protruded out of the storage liquid in the direction in which the items to be cleaned are taken out and circulated. Function Since the present invention is constructed as described above, when the object to be cleaned is cleaned with the flammable solvent in the cleaning section where the flammable solvent and the object to be cleaned come into contact, the solvent vapor generated by this cleaning, The scattered droplets are located in the hermetic covering, which is sealed by inserting the opening at the bottom into a nonflammable or flame-retardant storage liquid, and does not leak to the outside, so there is no possibility of ignition occurring within this hermetic covering. The risk of ignition will be eliminated if nothing is placed in the area. Furthermore, even if some ignition occurs, the risk of ignition can be reduced because the opening at the bottom of the hermetic covering is sealed with a non-flammable or flame-retardant liquid. Furthermore, if the stored liquid is water, it is economical and non-flammable, so a high degree of safety against ignition can be obtained. In addition, if the stored liquid is a flame-retardant oil with a high boiling point, when using a solvent that dissolves in water such as alcohol, it will be possible to prevent the solvent from dissolving in the stored liquid and prevent the stored liquid from becoming flammable. Become. In addition, the flammable solvent may be a terpene solvent,
The composition may be composed of a terpene solvent and a terpene emulsifying surfactant, it may be alcohol, it may be kerosene, and any flammable solvent may be used. In addition, if the sealing cover has an opening that is immovably pushed into the stored liquid, it becomes possible to supply the objects to be cleaned to the cleaning section via the stored liquid by a conveyor from a simple side of the machine and continuously. This makes it possible to clean the objects to be cleaned. In addition, the hermetic covering is positioned so that it can move forward and backward relative to the stored liquid,
If an opening is formed so that it can come into contact with and leave the stored liquid,
The transport path for the objects to be cleaned can be formed horizontally, making it possible to easily clean even relatively large objects.
In addition, when connected to other processing equipment that processes objects to be cleaned, it becomes possible to continuously transfer objects to be cleaned from the processing equipment to the cleaning device. Furthermore, if the flammable solvent comes into contact with the object to be cleaned in the cleaning section by spraying the flammable solvent onto the object to be cleaned in the form of a shower, powerful cleaning of the entire object to be cleaned becomes possible. In addition, if the flammable solvent and the object to be cleaned are brought into contact in the cleaning section, the object to be cleaned is brought into contact with the surface of the flammable solvent in a filling tank housed in a sealed chamber. , it becomes possible to clean only one side of a flat object such as a printed circuit board, improving cleaning efficiency and preventing the cleaning liquid from coming into contact with parts that are undesirable. Furthermore, by connecting a means for collecting scattered solvent to the sealed room, it is possible to reduce the concentration of flammable solvent vapor and droplets in the sealed room, further reducing the risk of ignition. Become. In addition, for the transfer of the items to be cleaned to the A7 boarding room, a chain conveyor is introduced from outside the hermetically sealed body through the stored liquid to the cleaning section inside the hermetically sealed body, and this introduced chain conveyor is moved in the direction in which the items to be cleaned are taken out. If the liquid is protruded outside the stored liquid and circulated, it becomes possible to continuously clean the objects to be cleaned using a simple mechanism. Embodiment Below, one embodiment of the present invention will be described with reference to the drawings.
) is a storage tank that stores a flame-retardant storage liquid (2) such as non-flammable water or flame-retardant oil with a high boiling point.It would be economical and economical to use water as the storage liquid (2). Since it can maintain nonflammability, a high degree of safety can be obtained during cleaning work.In addition, the stored liquid (2) can be replaced with flame-retardant oil such as heat transfer oil with a high boiling point, cutting oil, spindle oil, etc. If so, when using a solvent that dissolves in water such as alcohol, it will be possible to prevent the solvent from dissolving in the storage liquid (2) and prevent the storage liquid (2) from becoming flammable. The stored liquid (2) in (1) is filled with a hermetically sealed body (4) that is sealed by inserting the opening (3) at the lower end, and a hermetically sealed chamber is provided inside the hermetically sealed body (4). (5),
It has a cleaning part (8) that brings the flammable solvent (6) into contact with the object to be cleaned (7).The flammable solvent (6) is particularly limited as long as it meets the purpose of cleaning. However, for cleaning flag residue on printed circuit boards, for example, a terpene solvent or a combination consisting of a terpene solvent and a terbene emulsified surfactant is preferable.In addition, flammable solvents (6) are used for other cleaning purposes. alcohol, depending on
Any flammable solvent can be used, such as kerosene. Further, the above-mentioned sealing cover (4) is for immovably inserting the opening (3) into the stored liquid (2), and as shown in FIG. ), the liquid is introduced from the outside of the hermetic covering (4) via the stored liquid (2) into the washing section (8) inside the hermetic covering (4), and the introduced chain conveyor (
10) into the stored liquid (2) in the direction of leading out of the object to be cleaned (7).
A flushing shower (1) is installed in this protrusion to remove the flammable solvent (6) adhering to the object (7).
2) is installed. In addition, the hot water shower (1
2>, a bubble generating unit (13) such as a bubble outlet or an ultrasonic vibrator is provided.
また密閉被覆体（４）内の洗浄部（８）は、可燃性溶剤
〈６）を収納した充填槽（１４〉を設け、この充填槽〈
１４〉の上部を通過する被洗浄物（７）に、ポンプ（１
５）で加圧した可燃性溶剤（６）をシャワー（１６）に
より上下両面から吹き付けて洗浄を行うものである．こ
のように構成することにより、簡易な機構で被洗浄物（
７〉の洗浄ができるとともに連続的な被洗浄物（７〉の
洗浄が可能となるまた上記実施例では密閉被覆体（４〉
を上下動不能に収納液体（２〉に接触させたが、他の異
なる実施例では、第２図、第３図に示すごとく、収納液
体（２）に対し進退可能に位置し，収納液体（２〉に挿
入および離脱可能に開口部（３）を形成する．このよう
に形成することにより、被洗浄物〈７）の移送路を水平
に形成することができ、比較的大形の被洗洋物（７）で
も容易に洗浄することが出来るとともに被洗浄物〈７）
を加工する他の加工装置との接続において、加工装置か
ら移し代え等の必要なく、連続的に洗浄装置に被洗浄物
（７〉を移送することが可能となる．
また上記の密閉被覆体（４）の上下動は、固定的に位置
したスプロケットホイール（１７）に、モーター（１８
）で作動するチェーン（２０）を掛け渡し、このチェー
ン（２０）の一部を密閉被覆体（４〉の天板（２１）に
固定することにより行うが、この上下動は他の任意の方
法を選択することも勿論可能であり、例えばシリンダー
を密閉被覆体（４）に接続して上下動することも可能で
ある．
また前記の第１図に示す実施例では、密閉被覆体（４）
内にシャワー洗浄用の洗浄部（８）のみを形成したが、
他の異なる実施例では、第２図、第３図に示すごとく、
複数種の洗浄手段により構成される複数の洗浄部〈８〉
を設けることにより、洗浄効果の向上を図ることも可能
となる．まずその１つは、充填槽（１４）の可燃性溶剤
（６）を被洗浄物（７）にシャワー状に噴射して行うも
のであって、被洗浄物（７）全体の強力な洗浄が可能と
なる．また洗浄部（８）に於ける次の洗浄手段は、密閉
室〈５〉内に収納した充填槽（１４〉内の可燃性溶剤（
６）の液面に、被洗洋物（７〉の洗浄目的部のみを接触
して行うものとすれば、プリント基板等の平板状物の一
面のみの洗浄が可能となり、洗浄効率の向上と、洗浄液
に接触しては好ましくない部分への洗浄液の接触を防ぐ
ことができる．この場合は充填槽（１４〉とは別個にオ
ーバーフロー槽（２２〉を設け、充填槽（ｌ４〉の可燃
性溶剤（６）をボンプ（２３〉により水分分離器（２４
）を介してオーバーフロー槽（２２）に供給し、可燃性
溶剤〈６）をオーバーフローさせながら被洗浄物（７）
の洗浄目的部のみを接触させて洗浄を行う．
また次の洗浄手段は、上記の洗浄作業により、被洗浄物
（７）に付着した可燃性溶剤（６）を、収納槽（１）内
の収納液体（２）にて洗浄脱落させる工程である．上記
の各洗浄手段は、単独で用いても良いし、複数種を組み
合わせて用いても良く、洗浄目的に応じて任意に決定で
きる、また更には別個の洗浄手段、例えば浸漬洗浄槽等
を設置しても良い．
また上記の洗浄作業によって生じる・溶剤蒸気、飛散し
た飛沫等は、不燃性または難燃性の収納液体（２）に下
端の開口部（３）を挿入して密閉した密閉被覆体（４）
に位置し、外部に漏れることがないから、この密閉被覆
体（４〉内に発火の原因となるものを位置させなければ
、発火の危険性は無くなるものとなる。また多少の発火
原因を生じても、密閉被覆体（４〉は不燃性または難燃
性の収納液体（２〉に下端の開口部（３）を密閉されて
いるから、発火の危険性を減少することが可能となる．
また密閉被覆体（４〉内の密閉室（５〉に、蒸気、飛散
溶剤の飛沫等の回収手段（２５）を接続すれば、密閉室
（５〉内に於ける可燃性溶剤（６）の、蒸気、飛沫等の
濃度を低下することが可能となり、発火に対する危険性
を更に少なくすることが可能となる．そしてこの回収手
段（２５）は密閉室（５〉内の上部に吸入口（２６）を
突出した吸入管（２７）を、回収槽《２８〉の凝縮室（
３０）に接続し、冷却液体（３１）により形成した流下
液層（３２）により、吸入管（２７）から導入される蒸
気、飛散溶剤の飛沫等を凝縮するとともに凝縮室（３０
）と隔壁（３３）により分離し、隔壁（３３）の連通口
（３４）を冷却液体（３１）に挿入して設けた冷却液室
（３５）の上部空間〈３６）に、排出管（３７）を接続
し、この上部空間（３６）の清浄気体を密閉室〈５）に
還流することにより，密閉室（５〉内の可燃性溶剤〈６
〉の蒸気、飛沫等の濃度を著しく低下させることが可能
となる．
発明の効果
本発明は上述のごとく構戒したものであるから、洗浄に
よって生じる溶剤蒸気、飛散した飛沫等は、下端の開口
部を収納液体で密閉した密閉被覆体から外部に漏れるこ
とがないから、外部装置のスパーク、師電気等による発
火の危険性は無くなるものとなる．１た、多少の発火原
因を生じても、不燃性または難燃性の収納液体にによっ
て、発火の危険性を減少することが可能となる．
また収納液体を、水とすれば経済的でしがち不燃性を保
つことができるから、高度の安全性を得ることができる
。In addition, the cleaning section (8) inside the hermetic cover (4) is provided with a filling tank (14) containing a flammable solvent (6), and this filling tank (14) contains a flammable solvent (6).
14〉, the pump (1
Cleaning is carried out by spraying the flammable solvent (6) pressurized in step 5) from the top and bottom using a shower (16). With this configuration, the object to be cleaned (
In addition, in the above embodiment, the sealing cover (4) can be cleaned continuously.
is in contact with the stored liquid (2) without being able to move up and down, but in other different embodiments, as shown in FIGS. 2 and 3, the stored liquid ( An opening (3) is formed in the opening (3) so that it can be inserted into and removed from the opening (3).By forming the opening (3) in this manner, the transport path for the object to be cleaned (7) can be formed horizontally, and it is possible to Even foreign items (7) can be easily washed, and the items to be washed (7)
When connected to other processing equipment that processes the workpiece, it becomes possible to continuously transfer the object to be cleaned (7) to the cleaning equipment without the need for transfer from the processing equipment. 4) is controlled by a motor (18) mounted on a fixedly positioned sprocket wheel (17).
), and a part of this chain (20) is fixed to the top plate (21) of the sealing cover (4), but this vertical movement can be done by any other method. Of course, it is also possible to select the cylinder, and for example, it is also possible to connect the cylinder to the hermetic covering (4) and move it up and down.Furthermore, in the embodiment shown in FIG.
Only the cleaning part (8) for shower cleaning was formed inside.
In other different embodiments, as shown in FIGS. 2 and 3,
Multiple cleaning sections composed of multiple types of cleaning means <8>
By providing this, it is also possible to improve the cleaning effect. The first method is to spray the flammable solvent (6) from the filling tank (14) onto the object to be cleaned (7) in the form of a shower, which provides powerful cleaning of the entire object to be cleaned (7). It becomes possible. In addition, the next cleaning means in the cleaning section (8) is to remove the flammable solvent (
If only the object to be cleaned (7) is brought into contact with the liquid level in 6), it becomes possible to clean only one side of a flat object such as a printed circuit board, which improves cleaning efficiency. , it is possible to prevent the cleaning liquid from coming into contact with areas that are undesirable for contact with the cleaning liquid. In this case, an overflow tank (22) is provided separately from the filling tank (14), and the flammable solvent in the filling tank (14) is (6) into the moisture separator (24) using the bomb (23).
) to the overflow tank (22), and while the flammable solvent (6) overflows, the object to be cleaned (7) is
Cleaning is performed by contacting only the part to be cleaned. The next cleaning means is a step in which the flammable solvent (6) adhering to the object to be cleaned (7) is washed off by the liquid (2) in the storage tank (1) due to the above cleaning operation. ．． Each of the above cleaning means may be used alone or in combination, and can be arbitrarily determined depending on the cleaning purpose, or separate cleaning means, such as an immersion cleaning tank, may be installed. You may do so. In addition, the solvent vapor, scattered droplets, etc. generated by the above-mentioned cleaning work are removed from the hermetic covering (4), which is sealed by inserting the opening (3) at the lower end into a non-flammable or flame-retardant storage liquid (2).
Since there is no leakage to the outside, there is no risk of ignition unless there is anything that could cause ignition inside this hermetic covering (4). However, since the opening (3) at the lower end of the hermetic covering (4) is sealed with a non-flammable or flame-retardant storage liquid (2), the risk of ignition can be reduced.
In addition, if the collection means (25) for collecting steam, scattered solvent, etc. This makes it possible to reduce the concentration of vapor, droplets, etc., and further reduce the risk of ignition.The recovery means (25) has an inlet (26) in the upper part of the closed chamber (5). ) into the condensation chamber (28) of the collection tank <<28>>.
The flowing liquid layer (32) formed by the cooling liquid (31) condenses the vapor, scattered solvent droplets, etc. introduced from the suction pipe (27), and also connects to the condensation chamber (30).
) is separated by a partition wall (33), and a discharge pipe (37 ), and the clean gas in this upper space (36) is returned to the closed chamber (5), thereby eliminating the flammable solvent (6) in the closed chamber (5).
> It is possible to significantly reduce the concentration of vapor, droplets, etc. Effects of the Invention Since the present invention has been carefully considered as described above, solvent vapor generated by cleaning, scattered droplets, etc. will not leak to the outside from the hermetic covering whose lower end opening is sealed with the liquid contained therein. This eliminates the risk of fire caused by sparks from external devices, electric current, etc. 1. Even if some ignition occurs, the risk of ignition can be reduced by using a non-flammable or flame-retardant storage liquid. Furthermore, if water is used as the storage liquid, it is economical and non-flammable, so a high degree of safety can be obtained.
また収納液体を、沸点の高い難燃性油とすれば、アルコ
ール等の水に溶解する溶剤を用いる場合に、溶剤の収納
液体への溶解を防止し、収納液体の可燃化を防止できる
．
また密閉被覆体を、不動的に位置して収納液体で密閉す
れば、コンベアーによる収納液体を介した洗浄部への被
洗浄物の供給が、簡易な機構により可能となり、また連
続的な被洗浄物の洗浄が可能となる．
また密閉被覆体を、収納液体に対し進退可能に位置すれ
ば、被洗浄物の移送路を水平に形成でき、比較的大形の
被洗浄物でも、容易に洗浄可能となり、また洗浄゛装置
の前後に位置する加工装置との連続性が良好となる．
また洗浄部に於ける可燃性溶剤と被洗浄物の接触を、可
燃性溶剤をシャワー状に噴射して行えば、被洗浄物全体
の強力な洗浄が可能となる．また洗浄部に於ける可燃性
溶剤と被洗浄物の接触を、被洗浄物の洗浄目的部にのみ
接触して行えば、プリント基板等の平板状物の一面のみ
の洗浄が可能となり、洗浄効率の向上と、洗浄液に接触
しては好ましくない部分への洗浄液の接触を防ぐことが
できる．
また密閉室に、飛散溶剤の回収手段を接続すれば、可燃
性溶剤の蒸気、飛沫等の濃度を低下し、発火に対する危
険性を更に少なくすることが可能と成るものである．Furthermore, if the stored liquid is a flame-retardant oil with a high boiling point, when a water-soluble solvent such as alcohol is used, the solvent can be prevented from dissolving in the stored liquid, and the stored liquid can be prevented from becoming flammable. In addition, if the sealing cover is immovably positioned and sealed with the stored liquid, it becomes possible to supply the object to be cleaned to the cleaning section via the stored liquid by a conveyor with a simple mechanism, and the continuous It becomes possible to wash things. In addition, if the sealing cover is positioned so that it can move forward and backward relative to the stored liquid, the transfer path for the objects to be cleaned can be formed horizontally, and even relatively large objects can be easily cleaned. Good continuity with processing equipment located before and after. Furthermore, if the flammable solvent comes into contact with the object to be cleaned in the cleaning section by spraying the flammable solvent in the form of a shower, powerful cleaning of the entire object to be cleaned becomes possible. Additionally, if the flammable solvent and the object to be cleaned in the cleaning section come into contact with only the part of the object to be cleaned, it becomes possible to clean only one side of a flat object such as a printed circuit board, which improves cleaning efficiency. It is possible to prevent the cleaning liquid from coming into contact with parts that are not desirable to come into contact with the cleaning liquid. Furthermore, by connecting a means for collecting scattered solvent to the closed room, it is possible to reduce the concentration of flammable solvent vapor, droplets, etc., and further reduce the risk of ignition.
図面は本発明の一実施例を示すもので、第１ｒ：４は密
閉被覆体を固定的に位置した状態の断面図、第２図は上
下動可能に位置した密閉被覆体の下降状態の断面図、第
３図は上下動可能に位置した密閉被覆体の上昇状態の断
面図である．The drawings show one embodiment of the present invention, in which 1r:4 is a sectional view of the sealing cover in a fixed position, and Figure 2 is a sectional view of the sealing cover in a lowered state, which is movable up and down. Figures 3 and 3 are cross-sectional views of the hermetically sealed cover, which is movable up and down, in its raised state.
Claims (13)
を設け、この収納槽の収納液体に下端の開口部を挿入し
て密閉した密閉被覆体を形成し、この密閉被覆体の密閉
室に、可燃性溶剤と被洗浄物を接触させて洗浄を行う洗
浄部を形成した事を特徴とする可燃性溶剤を用いた洗浄
装置。(1) A storage tank containing a non-flammable or flame-retardant storage liquid is provided, an opening at the lower end is inserted into the liquid stored in the storage tank to form a hermetically sealed sheath, and the hermetic sheath is sealed. A cleaning device using a flammable solvent, characterized in that a cleaning section is formed in a chamber to perform cleaning by bringing the flammable solvent into contact with an object to be cleaned.
記載の可燃性溶剤を用いた洗浄装置。(2) Claim 1, wherein the stored liquid is water.
Cleaning equipment using the flammable solvents described.
徴とする請求項１記載の可燃性溶剤を用いた洗浄装置。(3) The cleaning device using a flammable solvent according to claim 1, wherein the stored liquid is a flame-retardant oil with a high boiling point.
する請求項１記載の可燃性溶剤を用いた洗浄装置。(4) The cleaning device using a flammable solvent according to claim 1, wherein the flammable solvent is a terpene solvent.
活性剤から成る組成物であることを特徴とする請求項１
記載の可燃性溶剤を用いた洗浄装置。(5) Claim 1, wherein the flammable solvent is a composition consisting of a terpene solvent and a terpene emulsifying surfactant.
Cleaning equipment using the flammable solvents described.
る請求１項記載の可燃性溶剤を用いた洗浄装置。(6) The cleaning device using a flammable solvent according to claim 1, wherein the flammable solvent is alcohol.
請求項１記載の可燃性溶剤を用いた洗浄装置。(7) The cleaning device using a flammable solvent according to claim 1, wherein the flammable solvent is kerosene.
したことを特徴とする請求項１記載の可燃性溶剤を用い
た洗浄装置。(8) The cleaning device using a flammable solvent according to claim 1, wherein the sealing cover has an opening inserted immovably into the stored liquid.
、収納液体に接触および離脱可能に開口部を形成したこ
とを特徴とする請求項１記載の可燃性溶剤を用いた洗浄
装置。(9) The cleaning device using a flammable solvent according to claim 1, wherein the sealing cover is positioned so as to be movable toward and away from the stored liquid, and has an opening formed so as to be able to come into contact with and detach from the stored liquid.
、可燃性溶剤を被洗浄物にシャワー状に噴射して行うこ
とを特徴とする請求項１記載の可燃性溶剤を用いた洗浄
装置。(10) Using the flammable solvent according to claim 1, wherein the contact between the flammable solvent and the object to be cleaned in the cleaning section is carried out by spraying the flammable solvent onto the object to be cleaned in the form of a shower. cleaning equipment.
、密閉室内に収納した充填槽内の可燃性溶剤の液面に、
被洗浄物の洗浄目的部を接触して行うことを特徴とする
請求１項記載の可燃性溶剤を用いた洗浄装置。(11) When the flammable solvent comes into contact with the object to be cleaned in the cleaning section, the liquid level of the flammable solvent in the filling tank stored in the sealed chamber
2. The cleaning apparatus using a flammable solvent according to claim 1, wherein the cleaning is carried out by contacting the target part of the object to be cleaned.
とを特徴とする請求項１記載の可燃性溶剤を用いた洗浄
装置。(12) The cleaning device using a flammable solvent according to claim 1, wherein the closed chamber is connected to a means for collecting the scattered solvent.
アーを密閉被覆体外から収納液体を介して、密閉被覆体
内の洗浄部に導入し、この導入したチェーンコンベアー
を、被洗浄物の導出方向の収納液体外に突出し、循環さ
せて行うことを特徴とする請求項１、８記載の可燃性溶
剤を用いた洗浄装置。(13) To transfer the object to be cleaned to the sealed room, a chain conveyor is introduced from outside the hermetically sealed body through the stored liquid into the cleaning section inside the hermetically sealed body, and this introduced chain conveyor is moved in the direction in which the object to be cleaned 9. A cleaning device using a flammable solvent according to claim 1, wherein said cleaning device uses a flammable solvent that protrudes outside the stored liquid and circulates it.
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1242710A JPH03106484A (en) | 1989-09-19 | 1989-09-19 | Washing apparatus using combustible solvent |
| KR1019900008270A KR930009198B1 (en) | 1989-09-19 | 1990-06-05 | Washing apparatus using combustible solvent |
| US07/849,804 US5246024A (en) | 1989-09-19 | 1992-03-11 | Cleaning device with a combustible solvent |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1242710A JPH03106484A (en) | 1989-09-19 | 1989-09-19 | Washing apparatus using combustible solvent |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH03106484A true JPH03106484A (en) | 1991-05-07 |
| JPH0543434B2 JPH0543434B2 (en) | 1993-07-01 |
Family
ID=17093095
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1242710A Granted JPH03106484A (en) | 1989-09-19 | 1989-09-19 | Washing apparatus using combustible solvent |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH03106484A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007109761A (en) * | 2005-10-12 | 2007-04-26 | Tana-X:Kk | Paper-made container for housing wafer |
-
1989
- 1989-09-19 JP JP1242710A patent/JPH03106484A/en active Granted
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007109761A (en) * | 2005-10-12 | 2007-04-26 | Tana-X:Kk | Paper-made container for housing wafer |
| JP4693582B2 (en) * | 2005-10-12 | 2011-06-01 | 株式会社ＴａｎａーＸ | Wafer storage paper container |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0543434B2 (en) | 1993-07-01 |
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